-er c-- ccc cce ccg cco ccr ccu ccv ccz ce- cec cee ceg ceo cer ceu cev cez cgc cge cgg cgo cgr cgu cgv co- coc coe cog coo cor cou cov coz crc cre crg cro crr cru crv crz cuc cue cug cuo cur cuu cuv cuz cvc cve cvg cvo cvr cvu cvv cvz cz- czc cze czo ec- ecc ece ecg eco ecr ecu ecv eec eee eeg eeo eer eev egc ege egg ego egr egu eo- eoc eoe eog eoo eor eou erc ere erg ero err eru erv erz eu- euc eue eug eur euv evc eve evg evo evr evv eze ezo ezr ezz gcc gce gcg gco gcr gcu ge- gec gee geg geo ger geu gev gez ggc ggg ggo ggr ggu ggv ggz goc goe gog goo gor gou gov goz grc gre grg gro grr gru grv gu- guc gue gug guo gur guu guv guz gvc gve gvg gvo gvr gvu gzo gzr gzu oc- occ ocg oco ocr ocu ocv ocz oec oee oeg oeo oer ogc oge ogg ogo oo- ooc oog ooo oor oov or- orc ore org oro orr oru orv orz ou- ouc oue ouo our ov- ovc ove ovo ovv oze ozo ozu ozz rcc rce rcg rco rcr rcu rcv re- rec ree reg reo rer reu rev rez rgc rge rgg rgo rgr rgv roc roe rog roo ror rou rov roz rrc rrg rrr rru ruc rue rug ruo rur ruu ruv ruz rvc rve rvg rvo rvr rvu rvv rze rzo ucc uce ucg uco ucr ucu ucv uec uee ueg uer ugc uge ugg ugo ugr ugu uoc uoe uog uoo uor ur- urc ure urg uro urr uru urz uuc uue uug uur uuu uvc uve uvo uvu uvv uzo uzu v-e vcc vce vco vcr vcu vec vee veg veo ver veu vez vgc vgg vgo vgr vgu vgz voc voe vog voo vor vou vov voz vrc vre vrg vrr vru vue vug vur vuv vuz vvc vvg vvo vvr vvv vvz z-g zce zco zec zee zeo zer zev zez zgg zgv zo- zoc zoe zog zoo zor zou zro zuc zug zur zuz zzr zzz